I have a venezia fro 4 years ago and for outdoors its not great. Its better for shopping centres. If you are on an uneven surface you need to lock the wheels. Also the wheels have no suspension. not like the 3 wheelers that they have now. Mind you I went from the peg perego to valco and the valco is much smoother to push. They are a bit heavier and you need a good size boot for a 3 wheeler. However, I think the 3 wheelers are not as bulky these days. But i prefered the peg to the 3 wheelers, because i am used to the peg so much I know how to handle it. But I am rambling now,Its what you get used to. To be honest, I think the peg has had its day, and the sooner baby goes into a layback stroller the better(mclaren make good ones). Im rambling again.
basically if you do alot of walking, a 3 wheeler is better. Go and test drive one at babyco or wherever you buy prams there.